Please use this identifier to cite or link to this item: http://10.7.2.42:8080/jspui/handle/2011/7124
metadata.dc.type: Artigo de Periódico
Issue Date: 2013
metadata.dc.creator: GOMES, Walber dos Santos
SILVA, Uriel Lean Valente
SOUZA, José Pio Iúdice de
Title: Influência do método de preparação de eletrocatalisadores PtRu/C sobre a atividade catalítica frente à reação de oxidação de etanol em meio ácido
Other Titles: Influence of method of preparation of PtRu/C electrocatalysts on the catalytic activity for the ethanol oxidation reaction in acidic medium
Citation: GOMES, Walber dos Santos; SILVA, Uriel Lean Valente; SOUZA, José Pio Iúdice de. Influência do método de preparação de eletrocatalisadores PtRu/C sobre a atividade catalítica frente à reação de oxidação de etanol em meio ácido. Química Nova, São Paulo, v. 36, n. 4, p. 507-512, 2013. Disponível em: <http://www.scielo.br/pdf/qn/v36n4/v36n4a04.pdf>. Acesso em: 23 fev. 2016. <http://dx.doi.org/10.1590/S0100-40422013000400004>.
Abstract: In this work the influence of variations in the borohydrate reduction method on the properties of PtRu/C electrocatalysts was investigated. The electrocatalysts were prepared using 1:1 ; 2:1; 5:1; 50:1 and 250:1 molar ratios of NaBH4 to metals. The reduction was also performed by dripping or by fast addition of the solution. The results showed that PtRu nanoparticles obtained by fast addition had the smallest crystallite sizes. It was also noted that the catalytic activity increased as the borohydrate:metal molar ratio increased. The PtRu/C electrocatalyst (50:1) obtained by fast addition presented the best catalytic activity for ethanol electro-oxidation.
Keywords: Agentes oxidantes
Etanol
Catalisadores
ISSN: 0100-4042
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - FAQUI/ICEN

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